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[riscv-gnu-toolchain]RISCV编译环境搭建老是报错?试试gitee
六点下课呐
编辑于 2023年12月13日 08:29
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共2篇

环境：WSL2+Ubuntu 20.04

工具链文件夹如图所示

一、下载工具链

正常步骤如下

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git clone  https://github.com/riscv-collab/riscv-gnu-toolchain.git
cd riscv-gnu-toolchain
git submodule update --init --recursive
复制成功

但是在拉取子模块的时候qemu老是报错，并且科学上网也没啥用，不算快

模块连接如下

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[submodule "binutils"]
	path = binutils
	url = https://sourceware.org/git/binutils-gdb.git
	branch = binutils-2_41-release-point
[submodule "gcc"]
	path = gcc
	url = https://gcc.gnu.org/git/gcc.git
	branch = releases/gcc-13
[submodule "glibc"]
	path = glibc
	url = https://sourceware.org/git/glibc.git
[submodule "dejagnu"]
	path = dejagnu
	url = https://git.savannah.gnu.org/git/dejagnu.git
	branch = master
[submodule "newlib"]
	path = newlib
	url = https://sourceware.org/git/newlib-cygwin.git
	branch = master
[submodule "gdb"]
	path = gdb
	url = https://sourceware.org/git/binutils-gdb.git
	branch = gdb-13-branch
[submodule "qemu"]
	path = qemu
	url = https://gitlab.com/qemu-project/qemu.git
[submodule "musl"]
	path = musl
	url = https://git.musl-libc.org/git/musl
	branch = master
[submodule "spike"]
	path = spike
	url = https://github.com/riscv-software-src/riscv-isa-sim.git
	branch = master
[submodule "pk"]
	path = pk
	url = https://github.com/riscv-software-src/riscv-pk.git
	branch = master
[submodule "llvm"]
	path = llvm
	url = https://github.com/llvm/llvm-project.git
	branch = release/17.x
复制成功

这里我们采用gitee下载，夹杂着部分github因为文件比较小，github下起来也比较快，并且都是master分支，不用切换

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git clone  https://github.com/riscv-collab/riscv-gnu-toolchain.git
cd riscv-gnu-toolchain
git clone -b binutils-2_41-release-point https://gitee.com/mirrors/binutils-gdb.git binutils
git clone https://sourceware.org/git/glibc.git glibc
git clone https://git.savannah.gnu.org/git/dejagnu.git dejagnu
git clone -b  releases/gcc-13  https://gitee.com/mirrors/gcc.git gcc
git clone https://sourceware.org/git/newlib-cygwin.git newlib
git clone -b gdb-13-branch https://gitee.com/mirrors/binutils-gdb.git gdb
git clone https://github.com/riscv-software-src/riscv-isa-sim.git spike
git clone https://github.com/riscv-software-src/riscv-pk.git pk
git clone -b release/17.x https://gitee.com/mirrors/LLVM.git llvm
git clone https://git.musl-libc.org/git/musl musl
git clone  https://gitee.com/mirrors/qemu.git qemu
复制成功

二、编译工具链

先安装一些依赖项

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 sudo apt-get install autoconf automake autotools-dev curl python3 python3-pip libmpc-dev libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev libexpat-dev ninja-build git cmake libglib2.0-dev
复制成功

在bashrc中添加

在工具链文件夹下面创建build文件夹，cd进去

mkdir build

cd build

执行如下命令(编译riscv32gc  double精度浮点数)

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../configure --prefix=$RISCV --with-arch=rv32gc --with-abi=ilp32d
复制成功

make -jN就可以了(N根据自己电脑定)

三、安装qemu检测工具链

cd qemu

mkdir build

之后安装依赖项

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# 安装编译所需的依赖包
sudo apt install autoconf automake autotools-dev curl libmpc-dev libmpfr-dev libgmp-dev \
              gawk build-essential bison flex texinfo gperf libtool patchutils bc \
              zlib1g-dev libexpat-dev pkg-config  libglib2.0-dev libpixman-1-dev git tmux python3
复制成功

之后configure一下编译，这里编译riscv32

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./configure --target-list=riscv32-softmmu,riscv32-linux-user
make -j$(nproc)
复制成功

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# 注意 $HOME 是 Linux 自动设置的表示你家目录的环境变量，你也可以根据实际位置灵活调整
export PATH="$HOME/xxxxx/qemu/build/:$PATH"
export PATH="$HOME/xxxxx/qemu/build/riscv32-softmmu:$PATH"
export PATH="$HOME/xxxxx/qemu/build/riscv32-linux-user:$PATH"
复制成功

结果如下

检测工具链

touch hello_riscv.c

vim hello_riscv.c

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#include <stdio.h>
int main()
{
	printf("Hello,RISCV!\n");
	return 0;
}
复制成功

riscv32-unknown-elf-gcc hello_riscv.c -O hello_riscv

qemu-riscv32 hello_riscv

之后就会打印 Hello,RISCV!

仿真 github gitee qemu risc-v riscv riscv-gnu-toolchain
本文为我原创，未经授权禁止转载
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